Enum History

#[non_exhaustive]
pub enum History {
    Unspecified,
    OriginallySinglePattern,
    FutureMultiPattern,
    UnknownValue(UnknownValue),
}

A description of the historical or future-looking state of the resource pattern.

Working with unknown values

This enum is defined as #[non_exhaustive] because Google Cloud may add additional enum variants at any time. Adding new variants is not considered a breaking change. Applications should write their code in anticipation of:

• New values appearing in future releases of the client library, and
• New values received dynamically, without application changes.

Please consult the Working with enums section in the user guide for some guidelines.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unspecified

The “unset” value.

OriginallySinglePattern

The resource originally had one pattern and launched as such, and additional patterns were added later.

FutureMultiPattern

The resource has one pattern, but the API owner expects to add more later. (This is the inverse of ORIGINALLY_SINGLE_PATTERN, and prevents that from being necessary once there are multiple patterns.)

UnknownValue(UnknownValue)

If set, the enum was initialized with an unknown value.

Applications can examine the value using History::value or History::name.

Implementations

impl History

pub fn value(&self) -> Option<i32>

Gets the enum value.

Returns None if the enum contains an unknown value deserialized from the string representation of enums.

pub fn name(&self) -> Option<&str>

Gets the enum value as a string.

Returns None if the enum contains an unknown value deserialized from the integer representation of enums.

Trait Implementations

impl Clone for History

fn clone(&self) -> History

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for History

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for History

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for History

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for History

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl From<&str> for History

fn from(value: &str) -> Self

Converts to this type from the input type.

impl From<i32> for History

fn from(value: i32) -> Self

Converts to this type from the input type.

impl PartialEq for History

fn eq(&self, other: &History) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for History

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for History